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Fakultät Maschinenbau

Konferenzbeiträge

2023


2022


2021

 
 

Gebhard, J., Kotzyba, P., Hering, O., Tekkaya, A. E., 2021. Introduction of a New Method for Continuous Aluminum Hot Extrusion. In: Forming the Future – Proceedings of the 13th International Conference on the Technology of Plasticity, pp. 1021-1032.

Güner, A., Hol, J., Venema, J., Sigvant, M., Dobrowolski, F., Komodromos, A., Tekkaya, A. E., 2021. Application of an Advanced Friction Model in Hot Stamping Simulations: A Numerical and Experimental Investigation of an A-Pillar Reinforcement Panel from Volvo Cars. In: Proceedings of the 40th International Deep-Drawing Research Group Conference (IDDRG 2021) (Digital).

Meya, R., Lennemann, P., Rethmann, P., Tekkaya, A. E., 2021. Analyse und Kontrolle der Schädigungsentwicklung beim Biegen von hochfesten Werkstoffen. In: Ilmenauer Federntag 2021. Neueste Erkenntnisse zu Funktion, Berechnung, Prüfung und Gestaltung von Federn und Werkstoffen, pp. 111-122.

Rosenthal, S., Jost, E., Saldana, C., Clausmeyer, T., Hahn, M., Tekkaya, A. E., 2021. Combined Computed Tomography and Numerical Modeling for the Analysis of Bending of Additively Manufactured Cellular Sheets. In: Forming the Future – Proceedings of the 13th International Conference on the Technology of Plasticity, pp. 2099-2113.

Schulze, A., Hering, O., Tekkaya, A. E., 2021. Welding of Aluminium in Chip Extrusion. In: Forming the Future – Proceedings of the 13th International Conference on the Technology of Plasticity, pp. 139-147.

Traphöner, H., Clausmeyer, T., Tekkaya, A. E., 2021. Estimation and Prevention of Strain Localization in Shear Tests. In: Forming the Future – Proceedings of the 13th International Conference on the Technology of Plasticity, pp. 691-707.

Zhang, C., Lou, Y., Clausmeyer, T., Tekkaya, A. E., 2021. Cyclic Loading Tests Based on the In-Plane Torsion Test for Sheet Metal. In: Forming the Future – Proceedings of the 13th International Conference on the Technology of Plasticity, pp. 635-645.

2020

 
 

Gallus, S., Wernicke, S., Hahn, M., Tekkaya, A. E., 2020. Erweiterung der Prozessgrenzen beim Inkrementellen Blechmassivumformen durch Thermisches Gradieren der Halbzeuge. Extended Abstract. In: Tagungsband des 23. Umformtechnischen Kolloquiums Hannover – Innovationspotenziale in der Umformtechnik, pp. 166-167.

Kleinschnittger, O., Strenger, N., Petermann, M., Frerich, S., Grodotzki, J., Selvaggio, A., Tekkaya, A. E., 2020. Remote Laboratories in Engineering Education − Deriving Guidelines for their Implementation and Operation. In: Proceedings of the 48th Annual Conference of European Society for Engineering Education (SEFI) online, pp. 251-259.

Kotzyba, P., Grötzinger, K. C., Hering, O., Liewald, M., Tekkaya, A. E., 2020. Introduction of Composite Hot Extrusion with Tubular Reinforcements for Subsequent Cold Forging. In: Proceedings of the 10th Congress of the German Academic Association for Production Technology (WGP), Dresden, Germany. https://doi.org/10.1007/978-3-662-62138-7_20 

Mogylenko, O., Selvaggio, A., Upadhya, S., Grodotzki, J., Tekkaya, A. E., 2020. Augmented Reality Application for the Mobile Measurement of Strain Distributions. In: Proceedings of the 17th International Conference on Remote Engineering and Virtual Instrumentation. https://doi.org/10.1007/978-3-030-52575-0_19 

Tekkaya, A. E., Gitschel, R., Meya, R., Hering, O., 2020. Schädigungsgesteuerte Umformprozesse. In: Tagungsband des 34. Aachener Stahlkolloquiums, pp. 19-28.

Upadhya, S., Grodotzki, J., Selvaggio, A., Mogylenko, O., Tekkaya, A. E, 2020. Remote Lab to Illustrate the Influence of Process Parameters on Product Properties in Additive Manufacturing. In: Proceedings of the 17th International Conference on Remote Engineering and Virtual Instrumentation. https://doi.org/10.1007/978-3-030-52575-0_37 

Wernicke, S., Hahn, M., Tekkaya, A. E., 2020. Herstellung Belastungsangepasster Funktionsbauteile Mittels Inkrementeller Blechmassivumformung. Extended Abstract. In: Tagungsband des 23. Umformtechnischen Kolloquiums Hannover – Innovationspotenziale in der Umformtechnik, pp. 164-165.

2019

   

Bellmann, J., Lueg-Althoff, J., Schulze, S., Hahn, M., Gies, S., Beyer, E., Tekkaya, A. E., 2019. Magnetic pulse welding of tubular parts. In: AIP Conference Proceedings 2113, Proceedings of the 22nd International ESAFORM Conference on Material Forming, Vitoria-Gasteiz, Spain. https://doi.org/10.1063/1.5112579 

Bellmann, J., Schettler, S., Dittrich, S., Lueg-Althoff, J., Schulze, S., Hahn, M., Beyer, E., Tekkaya, A. E., 2019. Experimental study on the magnetic pulse welding process of large aluminum tubes on steel rods. Materials Science and Engineering 480. https://doi.org/10.1088/1757-899X/480/1/012033 

Bellmann, J., Ueberschaer, F., Lueg-Althoff, J., Schulze, S., Hahn, M., Beyer, E., Tekkaya, A. E., 2019. Effect of the Forming Behavior on the Impact Flash during Magnetic Pulse Welding of Tubes. In: Proceedings of NUMIFORM 2019: The 13th International Conference on Numerical Methods in Industrial Forming Processes, New Hampshire, USA, pp. 651-654.

Clausmeyer, T., Nürnberger, F., Gutknecht, F., Isik, K., Besserer, H., Gerstein, G., Wernicke, S., Schulte, R., Tekkaya, A. E., Merklein, M., Maier, H., 2019. Analyse und Modellierung von Schädigung und Versagen in der Blechmassivumformung. 4. Workshop Blechmassivumformung, Erlangen, Germany, pp. 33-60.

Coppieters, S., Jäckel, M., Miyake, N., Kraus, C., Traphöner, H., Kuwabara, T., Tekkaya, A. E., 2019. Large Strain Flow Curve Identification for sheet metal: Process-Informed Method Selection. In: Proceedings of 12th Forming Technology Forum, Herrsching am Ammersee, Germany, (Digital).

Dardaei Joghan, H., Hahn, M., Traphöner, H., Tekkaya, A. E., 2019. Influence of the preheating strategy on the deep drawing of extruded magnesium alloy ME20 sheets. In: Proceedings of the 38th International Deep Drawing Research Group (IDDRG) Annual Conference, Enschede, The Netherlands, (Digital).

Dardaei Joghan, H., Izadyar, S. A., Hahn, M., Tekkaya, A. E., 2019. Effect of the unbending process on mechanical properties before and after flattening of extruded open tubes of magnesium alloy ME20. In: AIP Conference Proceedings 2113, Proceedings of the 22nd International ESAFORM Conference on Material Forming Vitoria-Gasteiz, Spain. https://doi.org/10.1063/1.5112707 

Gutknecht, F., Clausmeyer, T., 2019. Analysis of strain-path change indicator for application in sheet-bulk metal forming. In: Proceedings of 12th Forming Technology Forum, 19.-20.09.2019, Herrsching am Ammersee, Germany, (Digital).

Gutknecht, F., Vogel, M., Schulte, R., Merklein, M., Rosenbusch, D., Koch, S., Hübner, S., Behrens, B., Tekkaya, A. E., Clausmeyer, T., 2019. Comparison of strain-path indicators for analysis of processes in sheet-bulk metal forming. In: Proceedings of NUMIFORM 2019: The 13th International Conference on Numerical Methods in Industrial Forming Processes, New Hampshire, USA, pp. 123-126.

Hahn, M., Goyal, S., Gies, S., Tekkaya, A. E., 2019. Numerical Modeling of Energy Deposition for Vaporizing foil actuator Forming. In: Proceedings of NUMIFORM 2019: The 13th International Conference on Numerical Methods in Industrial Forming Processes, New Hampshire, USA, pp. 667-670.

Hering, O., Kolpak, F., Dahnke, C., Tekkaya, A. E., 2019. High Strain Flow Curves by Mechanical Tests on Specimens Pre-strained by Forward Rod Extrusion. In: Proceedings of 52nd ICFG Plenary Meeting 2019, Donostia-San Sebastián, Spain, pp. 149-156.

Hoffmann, E., Kamaliev, M., Löbbe, C., Tekkaya, A. E., 2019. Enhanced process limits in the granular media-based tube forming through axial feeding. In: 7th International Conference on Hot Sheet Metal Forming of High-Performance Steel CHS, Luleå, Sweden, pp. 95-102.

Kolpak, F., Hering, O., Dahnke, C., Tekkaya, A. E., 2019. Producing Hollow Shafts by Composite Extrusion Utilizing Granular Cores. In: Proceedings of 52nd ICFG Plenary Meeting 2019, Donostia-San Sebastián, Spain, pp. 225-232.

Kolpak, F., Dahnke, C., Tekkaya, A. E., 2019. Forming-induced anisotropy of product properties in cold extrusion. In: Proceedings of the METEC and 4th European Steel Technology and Application Days, Düsseldorf, Germany, (Digital).

Lueg-Althoff, J., Bellmann, J., Hahn, M., Schulze, S., Tekkaya, A. E., Beyer, E., 2019. Joining Dissimilar Thin-Walled Tubes by Magnetic Pulse Welding. In: Book of abstracts of 1st International Conference on Advanced Joining Processes, Ponta Delgada, Azores, p. 54.

Lueg-Althoff, J., Beu, M.-A., Güzel, A., Rohr, T., Hahn, M., 2019. Experimental and numerical investigations of joining by electromagnetic forming for aeronautical applications. In: AIP Conference Proceedings 2113, Proceedings of the 22nd International ESAFORM Conference on Material Forming, Vitoria-Gasteiz, Spain. https://doi.org/10.1063/1.5112576 

Maaß. F., Dobecki, M., Hahn, M., Reimers, W., Tekkaya, A. E., 2019. Setting Component Properties in Incremental Forming. In: Proceedings of MS&T 2019, Portland, USA, pp. 1176-1182.

Maaß, F., Hahn, M., Dobecki, M., Thannhäuser, E., Tekkaya, A. E., Reimers, W., 2019. Influence of tool path strategies on the residual stress development in single point incremental forming. Procedia Manufacturing 29, pp. 53-59.

Maaß, F., Hahn, M., Tekkaya, A. E., Dobecki, M., Poeche, A., Brommelhoff, K., Reimers, W., 2019. Forming mechanisms-related residual stress development in single point incremental forming. Production Engineering – Research and Development 13 (2). https://doi.org/10.1007/s11740-018-0867-3 

Martschin, J., Meya, R., Löbbe, C., Tekkaya, A. E., 2019. Novel roll stand for flexible profile bending. In: Proceedings of the 38th International Deep Drawing Research Group (IDDRG) Annual Conference, Enschede, The Netherlands, (Digital).

Mennecart, T., Gies, S., Ben Khalifa, N., Tekkaya, A. E., 2019. Analysis of the Influence of Fibers on the Formability of Metal Blanks in Manufacturing Processes for Fiber Metal Laminates. Journal of Manufacturing and Materials Processing 3 (1). https://doi.org/10.3390/jmmp3010002 

Münstermann, S., Sparrer, Y., Yao, Y., Lian, J., Meya, R., Clausmeyer, T., Tekkaya, A. E., 2019. Effect of plastic strain and ductile damage on elastic modulus of multiphase steel and its impact on springback prediction. In: AIP Conference Proceedings 2113, Proceedings of the 22nd International ESAFORM Conference on Material Forming, Vitoria-Gasteiz, Spain. https://doi.org/10.1063/1.5112739 

Rosenthal, S., Hahn, M., Tekkaya, A. E, 2019. Simulation approach for three-point plastic bending of additively manufactured Hastelloy X sheets. Procedia Manufacturing 34, pp. 475–481. https://doi.org/10.1016/j.promfg.2019.06.201 

Schowtjak, A., Kusche, C., Meya, R., Al-Samman, T., Korte-Kerzel, S., Tekkaya, A. E., Clausmeyer, T., 2019. Prediction of void evolution in sheet bending based on statistically representative microstructural data for the Gurson-Tvergaard-Needleman model. In: Proceedings of NUMIFORM 2019: The 13th International Conference on Numerical Methods in Industrial Forming Processes, New Hampshire, USA, pp. 311-314.

Selvaggio, A., Upadhya, S., Grodotzki, J., Tekkaya, A. E., 2019. Development of a Remote Compression Test Lab for Engineering Education. In: Proceedings of the 16th International Conference on Remote Engineering and Virtual Instrumentation (REV), Bengaluru, India, pp. 496-505.

Tebaay, L. M., Sieczkarek, P., Hahn, M., Gies, S., Tekkaya, A. E., 2019. Development of the Incremental Micro-Forming Process for small batch production of metallic bipolar plates. In: Ideen Form geben. 33. ASK Umformtechnik, Aachen, Germany, pp. 347-357.

Tekkaya, A. E., Traphöner, H., Hering, O., Kolpak, F., Gutknecht, F., Schowtjak, A., 2019. Über die klassische Werkstoffprüfung hinaus – Werkstoffeigenschaften für die moderne Umformtechnik. In: DGM dIALOG – Materialwissenschaften und Werkstofftechnik – Werkstoffprüfung 2, pp. 26-31.

Ünsal, I., Hirtler, M., Svirodov, A., Bambach, M., Hama-Saleh, R., Weisheit, A., Schleifenbaum, J. H., Kamaliev, M., Tekkaya, A. E., 2019. Investigation of martensite-transformation and forming properties of additively reinforced 22MnB5 sheet metals. In: AIP Conference Proceedings 2113, Proceedings of the 22nd International ESAFORM Conference on Material Forming, Vitoria-Gasteiz, Spain. https://doi.org/10.1063/1.5112735 

Upadhya, S., Selvaggio, A., Ortelt, T. R., Grodotzki, J., Tekkaya, A. E., 2019. Development of a Remote Tube Bending Lab to Illustrate Springback and Determine Process Limits. In: Proceedings of the 16th International Conference on Remote Engineering and Virtual Instrumentation (REV), Bengaluru, India, pp. 95-106.

Weber, F., Hahn, M., Tekkaya, A. E., 2019. Joining by die-less hydroforming with outer pressurization. In: Book of abstracts of 1st International Conference on Advanced Joining Processes, Ponta Delgada, Azores, pp. 56.

Wernicke, S., Gies, S., Tekkaya, A. E., 2019. Manufacturing of hybrid gears by incremental sheet-bulk metal forming. Procedia Manufacturing 27, pp. 152–157. https://doi.org/10.1016/j.promfg.2018.12.058 

2018

   

Bellmann, J., Lueg-Althoff, J., Schulze, S., Gies, S., Beyer, E., Tekkaya, A. E., 2018. Effects of Reactive Interlayers in Magnetic Pulse Welding. 8th International Conference on High Speed Forming. 13.-16.05.2018, Columbus, USA.

Chen, H., Löbbe, C., Staupendahl, D., Tekkaya, A. E., 2018. Development of a Procedure for Forming Assisted Thermal Joining of Tubes. In: Proceedings of the 21st International ESAFORM Conference on Material Forming, Palermo, Italy. https://doi.org/10.1063/1.5034879 

Dahnke, C., Tekkaya, A. E., 2018. Influence of the Manufacturing Process on Hot Extruded Shape Memory Alloy Metal Matrix Composites. In: Proceedings of the ASME 2018 Conference on Smart Materials, Adaptive Structures and Intelligent Systems SMASIS2018, San Antonio, USA. https://doi.org/10.1115/SMASIS2018-7934 

Gerstein, G., Briukhanov, A., Gutknecht, F., Volchok, N., Clausmeyer, T., Nürnberger, F., Tekkaya, A. E., Maier, H. J., 2018. Evaluation of Micro-Damage by Acoustic Methods. In: Procedia Manufacturing 15 (17th International Conference on Metal Forming), Toyohashi, Japan, pp. 527-534.

Gies, S., Tekkaya, A. E., 2018. Design of Hybrid Conductors for Electromagnetic Forming Coils. 8th International Conference on High Speed Forming. 13.-16.05.2018, Columbus, USA.

Grodotzki, J., Ortelt, T. R., Tekkaya, A. E., 2018. Remote and Virtual Labs for Engineering Education 4.0 – Achievements of the ELLI project at the TU Dortmund University. In: Procedia Manufacturing (46th SME North American Manufacturing Research Conference), Texas, USA, pp. 1349-1360.

Gutknecht, F., Gerstein, G., Traphöner, H., Clausmeyer, T., Nürnberger, F., 2018. Experimental Setup to Characterize Flow-Induced Anisotropy of Sheet Metals. In: Proceedings of the 37th International Deep-Drawing Research Group Conference, Waterloo, Canada. https://doi.org/10.1088/1757-899X/418/1/012085 

Hahn, M., Hansen, S. R. , Gies, S., Vivek, A., Daehn, G. S., Tekkaya, A. E., 2018. Prediction of Achievable Energy Deposition for Vaporizing Foil Actuators. 8th International Conference on High Speed Forming. 13.-16.05.2018, Columbus, USA.

Hering, O., Dahnke, C., Ben Khalifa, N., Tekkaya, A. E., 2018. Analysing damage evolution in cold forging by means of triaxiality and lode parameter. 8th JSTP International Seminar on Precision Forging. 05.-08.03.2018, Nagoya, Japan, pp. 121-124.

Hering, O., Dahnke, C., Tekkaya, A. E., 2018. Influence of Damage on the Properties of Cold Forged Parts. In: Proceedings of 51st ICFG Plenary Meeting, Columbus, USA, pp. 137-144.

Hoffmann, J., Komodromos, A., Fleischer, J., Tekkaya, A. E., 2018. Optimization of the Linear Coil Winding Process by Combining New Actuator Principles on the Basis of Wire Forming Analysis. In: Electric Drives Production Conference, Schweinfurt, Germany, pp. 11-16.

Joghan, H. D., Staupendahl, D., ul Hassan, H., Henke, A., Keesser, T., Legat, F., Tekkaya, A. E., 2018. Investigation of the Effects of Process and Geometrical Parameters on Formability in Tube Hydroforming Using a Modular Hydroforming Tool. In: Proceedings of the 21st International ESAFORM Conference on Material Forming, Palermo, Italy. https://doi.org/10.1063/1.5035009 

Kolpak, F., Dahnke, C., Tekkaya, A. E., 2018. Influence of the Bauschinger Effect on the product properties of cold forged parts. 8th JSTP International Seminar on Precision Forging. 05.-08.03.2018, Nagoya, Japan, pp.73-76

Kolpak, F., Dahnke, C., Tekkaya, A. E., 2018. Prediction of Product Properties in Cold Forging Considering the Bauschinger Effect. In: Proceedings of the 51st ICFG Plenary Meeting, Columbus, USA, pp. 159-166.

Komodromos, A., Tekkaya, A. E., Hofmann, J., Fleischer, J., 2018. Experimental and numerical investigations of wire bending by linear winding of rectangular tooth coils. ESAFORM. 23.-25.04.2018, Palermo, Italy.

Levin, E., Larour, P., Heuse, M., Staupendahl, D., Clausmeyer, T., Tekkaya, A. E., 2018. Influence of Cutting Tool Stiffness on Edge Formability. In: Proceedings of the 37th International Deep-Drawing Research Group Conference, Waterloo, Canada. https://doi.org/10.1088/1757-899X/418/1/012061 

Lueg-Althoff, J., Schilling, B., Bellmann, J., Gies, S., Hahn, M., Schulze, S., Tekkaya, A. E., Beyer, E., 2018. Influence of the Free Compression Stage on Magnetic Pulse Welding of Tubes. 8th International Conference on High Speed Forming. 13.-16.05.2018, Columbus, USA.

Maaß, S., Gies, S., Dobecki, M., Brömmelhoff, K., Tekkaya, A. E., Reimers, W., 2018. Analysis of residual stress state in sheet metal parts processed by single point incremental forming. ESAFORM, 23.-25.04.2018, Palermo, Italy.

Mennecart, T., Werner, H., Ben Khalifa, N., Weidenmann, K. A., 2018. Developments and Analyses of Alternative Processes for the Manufacturing of Fiber Metal Laminates. In: Proceedings of the 13th Manufacturing Science and Engineering Conference (MSEC2018), College Station, USA. https://doi.org/10.1115/MSEC2018-6447 

Meya, R., Löbbe, C., Tekkaya, A. E., 2018. Stress State Control by a Novel Bending Process and its Effect on Damage Evolution. In: Proceedings of the 13th Manufacturing Science and Engineering Conference, College Station, USA. https://doi.org/10.1115/MSEC2018-6349 

Napierala, O., Dahnke, C., Tekkaya, A. E., 2018. Presentation of Combined Deep Drawing and Cold Forging. In: Proceedings of the 51st ICFG Plenary Meeting, Columbus, USA, pp. 185-192.

Nazari, E., Löbbe, C., Gallus, S., Izadyar, A. S., Tekkaya, A. E., 2018. Design of process parameters for the incremental tube forming (ITF) by FEM to control product properties. ESAFORM.  23.-25.04.2018, Palermo, Italy.

Schiffeler, N., Grodotzki, J., Ortelt, T. R., Stehling, V., Isenhardt, I., Tekkaya, A. E., 2018. Virtual und Augmented Reality in der MINT-Lehre – Good Practice-Beispiele aus dem Projekt ELLI 2. In: Proceedings of DeLFI 2018 (Die 16. E-Learning Fachtagung Informatik), Frankfurt am Main, Germany, pp. 293-294.

Tekkaya, A. E., Schowtjak, A., Clausmeyer, T., 2018. Damage in Metal Forming. 8th JSTP International Seminar on Precision Forging. 05.-08.03.2018, Nagoya, Japan, pp. 21-26.

Upadhya, S., Staupendahl, D., Heuse, M., Tekkaya, A. E., 2018. Improved Failure Prediction in Forming Simulations through Pre-strain Mapping. In: Proceedings of the 21st International ESAFORM Conference on Material Forming, Palermo, Italy. https://doi.org/10.1063/1.5034939 

Wernicke, S., Gies, S., Dang, T., Tekkaya, A. E., 2018. Effect of multiple forming tools on geometrical and mechanical properties in incremental sheet forming. ESAFORM. 23.-25.04.2018, Palermo, Italy.

2017

   

Chen, H., Staupendahl, D., Hiegemann, L., Tekkaya, A. E., 2017. Increasing the formability of ferritic stainless steel tube by granular medium-based hot forming. In: Journal of Physics: Conference Series 896, 36th IDDRG Conference – Materials Modelling and Testing for Sheet Metal Forming, Munich, Germany. https://doi.org/10.1088/1742-6596/896/1/012009 

Dahnke, C., Kolpak, F., Kloppenborg, T., Tekkaya, A. E., 2017. Manufacturing of reinforced profiles by means of combined continuous and discontinuous composite extrusion. In: Proceedings of the ICEB 2017, Verona, Italy, (Digital).

Dahnke, C., Shapovalov, A., Tekkaya, A. E., 2017. Thermally activated lightweight actuator based on hot extruded shape memory metal matrix composites (SMA-MMC). In: Procedia Engineering 207: 12th International Conference on Technology of Plasticity, Cambridge, United Kingdom, pp. 1511-1516.

Doig, M., Isik, K., Clausmeyer, T., Heibel, S., Richter, H., Tekkaya, A. E., 2017. Material Characterization and Validation Studies for Modeling Ductile Damage during Deep Drawing. In: Proceedings of the 17th International Conference on Sheet Metal, Palermo, Italy, pp. 77-82.

Doig, M., Isik, K., Clausmeyer, T., Richter, H., Heibel, S., Tekkaya, A. E., 2017. Material characterization and parameter optimization for a damage model. In: SCT 2017 Proceedings, Amsterdam, The Netherlands, (Digital).

Gerstein, G., Clausmeyer, T., Gutknecht, F., Tekkaya, A. E., Nürnberger, F., 2017. Analysis of Dislocation Structures in Ferritic and Dual Phase Steels Regarding Continuous and Discontinuous Loading Paths. In: TMS 2017, 146th Annual Meeting & Exhibition Supplemental Proceedings, San Diego, USA, pp. 203-210.

Gerstein, G., Isik, K., Gutknecht, F., Sieczkarek, P., Ewert, J., Tekkaya, A. E., Clausmeyer, T., Nürnberger, F., 2017. Microstructural characterization and simulation of damage for geared sheet components. In: Journal of Physics: Conference Series 896, 36th IDDRG Conference - Materials Modelling and Testing for Sheet Metal Forming, Munich, Germany. https://doi.org/10.1088/1742-6596/896/1/012076 

Gies, S., Tekkaya, A. E., 2017. Effect of workpiece deformation on Joule heat losses in electromagnetic forming coils. In: Procedia Engineering 207: 12th International Conference on Technology of Plasticity, Cambridge, United Kingdom, pp. 341-346.

Gutknecht, F., Isik, K., Clausmeyer, T., Tekkaya, A. E., 2017. Comparison of Gurson and Lemaitre model in the context of blanking simulation of a high strength steel. In: Proceedings of the XIV International Conference on Computational Plasticity – Fundamentals and Applications COMPLAS 2017, Barcelona, Spain, pp. 163-173.

Gutknecht, F., Isik, K., Clausmeyer, T., Tekkaya, A. E., Gerstein, G., Nürnberger, F., 2017. Vorhersage von Schädigung in der Blechmassivumformung. In: 22. Umformtechnisches Kolloquium, Hannover, Germany, p. 220, (Poster).

Grodotzki, J., Ortelt, T. R., Tekkaya, A. E., 2017. Development of a FEM-Lab for the virtual experimentation in forming processes. In: 4th Experiment@ International Conference Online Experimentation, Faro, Portugal, pp. 123-124.

Grodotzki, J., Selvaggio, A., Ortelt, T. R., Tekkaya, A. E., 2017. Demonstration of Deep Drawing Experiments in a Remote Lab Environment. In: 4th Experiment@ International Conference Online Experimentation, Faro, Portugal, pp. 141-142.

Grzancic, G., Hiegemann, L., Ben Khalifa, N., 2017. Investigation of new tool design for incremental profile forming. In: Procedia Engineering 207: 12th International Conference on Technology of Plasticity, Cambridge, United Kingdom, pp. 1767-1772.

Heibel, S., Nester, W., Clausmeyer, T., Tekkaya, A. E., 2017. Failure assessment in sheet metal forming using a phenomenological damage model and fracture criterion: experiments, parameter identification and validation. In: Procedia Engineering 207: 12th International Conference on Technology of Plasticity, Cambridge, United Kingdom, pp. 2066-2071.

Heibel, S., Nester, W., Clausmeyer, T., Tekkaya, A. E., 2017. Influence of different Yield Loci on Failure Prediction with Damage Models. In: Journal of Physics: Conference Series, Volume 896, 36th IDDRG Conference – Materials Modelling and Testing for Sheet Metal Forming, Munich, Germany. https://doi.org/10.1088/1742-6596/896/1/012081 

Hering, O., Ossenkemper, S., Dahnke, C., Tekkaya, A. E., Nadolski, D., Schulz, A., Zoch, H.-W., 2017. Distortion Induced by Cold Forging and Subsequent Heat Treatment. In: SCT 2017 Proceedings, Amsterdam, The Netherlands, (Digital).

Hijazi, D., Traphöner, H., Staupendahl, D., Clausmeyer, T., Tekkaya, A. E., 2017. Characterization of planar anisotropy, hardening and fracture of tubular materials by a modified in-plane torsion test. In: SCT 2017 Proceedings, Amsterdam, The Netherlands, (Digital).

Kamaliev, M., Löbbe, C., Hiegemann, L., Tekkaya, A. E., 2017. Potenziale der akustischen Sensorik zur prozessbegleitenden Zustandsüberwachung beim Presshärten. In: 12. Erlanger Workshop Warmblechumformung 2017, Fürth, Germany, pp. 43-54.

Kolpak, F., Dahnke, C., Tekkaya, A. E., 2017. Numerical Prediction of the Process Limits of Aluminum Chip Extrusion. In: WGP Jahreskongress 2017, Aachen, Germany, pp. 481-486.

Kolpak, F., Schwane, M., Dahnke, C., Tekkaya, A. E., 2017. Improved property prediction of cold forged components by means of enhanced material models. In: SCT 2017 Proceedings, Amsterdam, The Netherlands, (Digital).

Komodromos, A., Löbbe, C., Tekkaya, A. E., 2017. Development of forming and product properties of copper wire in a linear coil winding process. In: 2017 7th International Electric Drives Production Conference (E|DPC), Würzburg, Germany, pp. 13-18.

Kruse, D., Kuska, R., Frerich, S., May, D., Ortelt, T. R., Tekkaya, A. E., 2017. More Than “Did You Read the Script?”, In: REV2017 Proceedings – International Conference on Remote Engineering and Virtual Instrumentation, New York, USA, pp. 160-169.

Löbbe, C., Hater, S., Kamaliev, M., Hiegemann, L., Tekkaya, A. E., 2017. Sheet Metal Forming in Progressive Dies Assisted by Rapid Induction Heating: Setting of Springback and Product Properties. In: 6th International Conference Proceedings Hot Sheet Metal Forming of High Performance Steel, Atlanta, USA, pp. 649-662.

Maaß, F., Gies, S., Tekkaya, A.E., 2017. Deformation Characteristics of Thermoplastics in Single Point Incremental Forming. In: AIP Conference Proceedings 1896, Dublin, Ireland. https://doi.org/10.1063/1.5008050 

Mennecart, T., Hiegemann, L., Ben Khalifa, N., 2017. Analysis of the forming behaviour of in-situ drawn sandwich sheets. In: Procedia Engineering 207: 12th International Conference on Technology of Plasticity, Cambridge, United Kingdom, pp. 890-895.

Meya, R., Löbbe, C., Hering, O., Tekkaya, A. E., 2017. New Bending Process with Superpostition of Radial Stresses for Damage control. In: 10th Forming Technology Forum Model Based Control for Smart Forming Processes, Enschede, The Netherlands, pp. 81-85.

Napierala, O., Ben Khalifa, N., Tekkaya, A. E., Missal, N., Felde, A., Liewald, M., 2017. Numerical Analysis of Manufacturing Load-Tailored Components by Cold. In: SCT 2017 Proceedings, Amsterdam, The Netherlands, (Digital).

Ortelt, T. R., Tekkaya, A. E., 2017. Engineering Education 4.0 – Teaching for Industry 4.0. In: Proceedings of the 8th Zwick Academia Day 2017, Hong Kong.

Ortelt, T. R., Ruider, E., Tekkaya, A. E., 2017. Virtual Lab for Material Testing using the Oculus Rift. In: 4th Experiment@ International Conference Online Experimentation, Faro, Portugal, pp. 145-146.

Ossenkemper, S., Dahnke, C., Ben Khalifa, N., Tekkaya, A. E., 2017. Composite Cold Forging – Producing Steel-Aluminum-Composite Shafts with Conventional Cold Forging Tools. In: Proceedings of the 50th ICFG Plenary Meeting, Shanghai, China, pp. 183-191.

Schmitz, F., Winter, S., Clausmeyer, T., Even, D., Colasse, C., Tekkaya, A. E., Wagner, M. F., 2017. Materials science-based simulation strategies for the adiabatic cutting process. In: SCT 2017 Proceedings, Amsterdam, The Netherlands, (Digital).

Schowtjak, A., Clausmeyer, T., Tekkaya, A. E., 2017. Analysis of Damage and Fracture formulations in Cold Extrusion. In: Proceedings of the XIV International Conference on Computational Plasticity – Fundamentals and Applications COMPLAS 2017, Barcelona, Spain, pp. 196-207.

Schulze, A., Dahnke, C., Tekkaya, A. E., 2017. Developments in composite extrusion of complex profiles for automotive applications. In: Proceedings of the ICEB 2017, Verona, Italy, (Digital).

Sieczkarek, P., Gies, S., Ben Khalifa, N., Tekkaya, A. E., 2017. Wirtschaftliche inkrementelle Blechmassivumformung. In: 22. Umformtechnisches Kolloquium, Hannover, Germany, p. 225, (Poster).

Sieczkarek, P., Wernicke, S., Gies, S., Tekkaya, A. E., 2017. Incremental Sheet-Bulk Metal Forming – Overview on the development of a new forming technology. In: Proceedings of the 50th ICFG Plenary Meeting, Shanghai, China, pp. 196-205.

Staupendahl, D., Tekkaya, A. E., 2017. The reciprocal effects of bending and torsion on springback during 3D bending of profiles. In: Procedia Engineering 207: 12th International Conference on Technology of Plasticity, Cambridge, United Kingdom, pp. 2322-2327.

Staupendahl, D., Tekkaya, A. E., 2017. Inline-measurement of complex profile contours for the generation of process parameters used in 3D-bending. In: SCT 2017 Proceedings, Amsterdam, The Netherlands, (Digital).

Strenger, N., May, D., Ortelt, T. R., Kruse, D., Frerich, S., Tekkaya, A. E., 2017. Internationalization and Digitalization in Engineering Education. In: Proceedings of the 3rd International Conference on Higher Education Advances, Valencia, Spain, pp. 558-565.

Sumikawa, S., Ishiwatari, A., Hiramoto, J., Yoshida, F., Clausmeyer, T., Tekkaya, A. E., 2017.  Stress state dependency of unloading behavior in high strength steels. In: Procedia Engineering 207: 12th International Conference on Technology of Plasticity, Cambridge, United Kingdom, pp. 179-184.

Traphöner, H., Clausmeyer, T., Tekkaya, A. E., 2017. Material characterization for plane and curved sheets using the in-plane torsion test – an overview. In: Procedia Engineering 207: 12th International Conference on Technology of Plasticity, Cambridge, United Kingdom, pp.1934-1939.

Wernicke, S., Gies, S., Ben Khalifa, N., Tekkaya, A. E., 2017. Herstellung von belastungsangepassten Funktionsbauteilen mittels inkrementeller Blechmassivumformung. In: 22. Umformtechnisches Kolloquium, Hannover, Germany, pp. 215-216, (Poster).

Wernicke, S., Sieczkarek, P., Grodotzki, J., Gies, S., Ben Khalifa, N., Tekkaya, A. E., 2017. Material Flow Analysis for The Incremental Sheet-Bulk Gearing by Rotating Tools. In: ASME 2017, 12th International Manufacturing Science and Engineering Conference collocated with the JSME/ASME 2017 6th International Conference on Materials and Processing, Los Angeles, CA, USA. https://doi.org/10.1115/MSEC2017-3029 

Winter, S., Schmitz, F., Clausmeyer, T., Tekkaya, A. E., Wagner, M. F.-X., 2017. High temperature and dynamic testing of AHSS for an analytical description of the adiabatic cutting process. In: IOP Conference Series: Materials Science and Engineering 181, 19th Chemnitz Seminar on Materials Engineering, Chemnitz, Germany. https://doi.org/10.1088/1757-899X/181/1/012026 

2016

   

Beese, S., Beyer, F., Blum, H., Isik, K., Kumor, D., Rademacher, A., Tekkaya, A. E., Willner, K., Wriggers, P., Zeller, S., Löhnert S., 2016. Simulation of Sheet-Bulk Metal Forming Processes with Simufact.forming using User-Subroutines. In: ESAFORM 2016, AIP Conference Proceedings. Nantes, France. http://dx.doi.org/10.1063/1.4963457

Becker, C., Chatti, S., Grzancic, G., Tekkaya, A. E., 2016. New Process for Flexible Manufacturing of Bent Parts with Variable Arbitrary Cross Section. In: ESAFORM 2016, AIP Conference Proceedings. Nantes, France. http://dx.doi.org/10.1063/1.4963541

Behrens, B. A., Bouguecha, A., Huskic, A., Diefenbach, J., Labanova, N., Tekkaya, A. E., Ben Khalifa N., Napierala, O., 2016. Herstellung von Leichtbauteilen aus Stahl mittels der Massivumformung, In: XXXV. Verformungskundliches Kolloquium, Zauchensee, Austria, pp. 129-134.

Bellmann, J., Lueg-Althoff, J., Goebel, G., Gies, S., Beyer, E., Tekkaya, A. E., 2016. Effects of Surface Coatings on the Joint Formation during Magnetic Pulse Welding in Tube-to-Cylinder Configuration. In: ICHSF 2016, Dortmund, Germany, pp. 279–288.

Bellmann, J., Lueg-Althoff, J., Kirchhoff, G., Schulze, S., Gies, S., Beyer, E., Tekkaya, A. E., 2016. Magnetic Pulse Welding: Joining Within Microseconds – High Strength Forever. In: 10th International Conference on Trends in Welding Research, Tokyo, Japan, pp. 91-93.

Bellmann, J., Lueg-Althoff, J., Schulze, S., Gies, S., Beyer, E., Tekkaya, A. E., 2016. Magnetic Pulse Welding: Solutions for Process Monitoring within Pulsed Magnetic Fields. In: EAPCC 2016, 6th Euro-Asian Pulsed Power Conference, BEAMS 2016, 21th International Conference on High-Power Particle Beams, MG-XV 2016, 15th International Conference on Megagauss Magnetic Field Generation and Related Topics, Lisbon, Portugal.

Ben Khalifa, N., Dahnke, C., Pietzka, D., Foydl, A., Tekkaya, A. E., 2016. Newest Developments in Composite Extrusion. In: 11th International Aluminum Extrusion Technology Seminar and Exposition, Chicago, USA, pp. 559-569.

Clausmeyer, T., Heibel, S., Nester, W., Tekkaya, A. E., 2016. Damage characterization of high-strength multiphase steels. In: IDDRG 2016, Linz, Austria, pp. 10-17.

Dahnke, C., Lorch, Y., Haase, M., Ben Khalifa, N., Tekkaya, A. E., 2016. Manufacturing of Shape Memory Metal Matrix Composites (SM-MMCs) by Composite Extrusion. In: 11th International Aluminum Extrusion Technology Seminar and Exposition, Chicago, USA, pp. 571-581.

Dang, T., Tebaay, L. M., Gies, S., Tekkaya, A. E., 2016. Multiple forming tools in incremental forming – Influence of the forming strategies on sheet contour. In: ESAFORM 2016, AIP Conference Proceedings. 1769, 070009, Nantes, France. http://dx.doi.org/10.1063/1.4963462

Gebhard, J., El Budamusi, M., Becker, C., Chen, L., Clausmeyer, T., Tekkaya, A. E., 2016. Enhancement of forming limits in bending with a combined strategy. In: 66th Japanese Joint Conference for the Technology of Plasticity, pp. 195-196.

Gutknecht, F., Übelacker, D., Clausmeyer, T., Tekkaya, A. E., 2016. Numerical investigation of blanking metal polymer sandwich sheets. In: NUMIFORM 2016, MATEC Web of Conferences, Troyes, France. http://dx.doi.org/10.1051/matecconf/20168016002

Hahn, M., Ben Khalifa, N., Wollmann, T., Jaschinski, J., Modler, N., Zeiser, A., Wiedemann, S., Meissen, F., 2016. Forming of Carbon Fibre-reinforced Metal Laminates in combination with injection moulding. The 5th International Lower Silesia - Saxony Conference - AutoMetForm 2016, Wroclaw, Poland, pp. 105-110.

Hess, S., Schild, J., Hiegemann, L., Hoppmann, C., Tekkaya, A. E., 2016. Process limits of an integrated deep drawing and injection molding process. IDDRG 2016, Linz, Austria, pp. 287-294.

Hiegemann, L., Agarwal, C., Weddeling, C., Tekkaya, A. E., 2016. Reducing the stair step effect of layer manufactured surfaces by ball burnishing. In: ESAFORM 2016, AIP Conference Proceedings, Nantes, France. http://dx.doi.org/10.1063/1.4963612

Kruse, D., Frerich,S., Petermann, M., Ortelt, T. R., Tekkaya, A. E., 2016. Remote labs in ELLI: Lab experience for every student with two different approaches. In: EDUCON 2016, Abu Dhabi, UAE, pp. 469-475.

Liewald, M., Neipp, C., Weber, C., Surm, H., Otto, M., Leonhardt, C., Többe, J., Meßner, R., Benkert, T., Felde, A., Schwane, M., Metzger, M., Tiffe, M., Vogel, F., Missal, N., Napierala, O., Diefenbach, J., Kuwert, P., Huskic, A., Tothgang, M., Dehio, J., Dürig, M., Busse, A., 2016. Lightweight Forging – Innovation Network for Technological Progress in Part, Process and Material Design for Forged Parts in Automotive Technology. In: ICFG 2016, 49th Plenary Meeting, Stuttgart, Germany, pp. 136-140.

Lueg-Althoff, J., Bellmann, J., Gies, S., Schulze, S., Tekkaya, A. E., Beyer, E., 2016. Magnetic Pulse Welding of Dissimilar Metals in Tube-to-Tube Configuration. In: 10th International Conference on Trends in Welding Research, Tokyo, Japan, pp. 87-90.

Lueg-Althoff, J., Gies, S., Schulze, S., Bellmann, J., Beyer, E., Schulze, S., Tekkaya, A. E., 2016. Magnetic Pulse Welding of Tubes: Ensuring the Stability of the Inner Diameter. In: EAPCC 2016, 6th Euro-Asian Pulsed Power Conference, BEAMS 2016, 21th International Conference on High-Power Particle Beams, MG-XV 2016, 15th International Conference on Megagauss Magnetic Field Generation and Related Topics, Lisbon, Portugal.

Lueg-Althoff, J., Schilling, B., Bellmann, J., Gies, S., Schulze, S., Beyer, E., Tekkaya, A. E., 2016. Influence of the Wall Thicknesses on the Joint Quality during Magnetic Pulse Welding in Tube-to-Tube Configuration. In: ICHSF 2016, Dortmund, Germany, pp. 259-268.

May, D., Lensing, K., Tekkaya, A.E., 2016. Internationalization as a topic in higher engineering education - A quantitative content analysis examining the engineering curricula from ten German technical universities. In: EDUCON 2016, Abu Dhabi, UAE, pp. 136-141.

May, D., Tekkaya, A. E., 2016. Using transnational online learning experiences for building international student working groups and developing intercultural competences. In: ASEE‘s 123rd Annual Conference & Exposition, New Orleans, USA.

May, D., Terkowsky, C., Ortelt, T. R., Tekkaya, A. E., 2016. The Evaluation of Remote Laboratories: Development and application of a holistic model for the evaluation of online remote laboratories in manufacturing technology education. In: REV2016 – 13th International Conference on Remote Engineering and Virtual Instrumentation, Madrid, Spain, pp. 127-136.

May, D., Terkowsky, C., Ortelt, T. R., Tekkaya, A. E., 2016. Using and Evaluating Remote Labs in Transnational Online Courses for Mechanical Engineering Students Paper. In: ASEE‘s 123rd Annual Conference & Exposition, New Orleans, USA.

Mennecart, T., Hiegemann, L., Ben Khalifa, N., 2016. Werkzeugentwicklung für In-Situ-Hybridisierung von Metall-Faser- Metall-Laminaten unter Berücksichtigung der viskosen Zwischenlage. In: 23. Sächsische Fachtagung Umformtechnik.

Meya, R., Ortelt, T. R., Selvaggio, A., Chatti, S., Becker, C., Tekkaya, A. E., 2016. Development of a tele-operative control for the incremental tube forming process and its integration into a learning environment. EDUCON 2016, 13.05.2016, Abu Dhabi, UAE, pp. 80-86.

Müller, M., Gies, S., Tekkaya, A. E., 2016. Gesenkfreies Innenhochdruckfügen von Vierkantrohren. In: 7. VDI Fachtagung Welle-Nabe-Verbindungen, Karlsruhe, Germany, pp. 241-246.

Napierala, O., Kolpak, F., Dahnke, C., Tekkaya, A. E., Wälder, J., Liewald, M., 2016. Potentials and Limits of Hollow Lateral Extrusion. In: ICFG 2016, 49th Plenary Meeting, Stuttgart, Germany, pp. 168-173.

Ortelt, T. R., Gies, S., Traphöner, H., Chatti, S., Tekkaya, A. E., 2016. Integration of new concepts and features into forming technology lectures. In: EDUCON 2016, Abu Dhabi, UAE, pp. 555-562.

Ortelt, T. R., Pekasch, S., Lensing, K., Guéno, J., May, D., Tekkaya, A. E., 2016. Concepts of the international manufacturing remote lab (MINTReLab): Combination of a MOOC and a remote lab for a manufacturing technology online course. In: EDUCON 2016, Abu Dhabi, UAE, pp. 602-607.

Ortelt, T. R., Selvaggio, A., Meya, R., Chatti, S., Tekkaya, A. E., 2016. Live Demo of Two Experiments using a Remote Lab for forming Technology. In: REV2016 – 13th International Conference on Remote Engineering and Virtual Instrumentation, Madrid, Spain, pp. 326-327.

Selvaggio, A., Sadiki, A., Ortelt, T. R., Meya, R., Becker, C., Chatti, S., Tekkaya, A. E., 2016. Development of a Cupping Test in Remote Laboratories for Engineering Education. In: REV2016 – 13th International Conference on Remote Engineering and Virtual Instrumentation, Madrid, Spain, pp. 116-120.

Sieczkarek, P., Silva, C. M. A., Wernicke, S., Tekkaya, A. E., Martins, P. A. F., 2016. Mechanical characterization of materials for sheet-bulk metal forming processes. In: RTME 2016 Conference, Aveiro, Portugal, pp. 62-83.

Staupendahl, D., Chatti, S., Tekkaya, A. E., 2016. Closed-Loop Control Concept for Kinematic 3D-Profile Bending. In: ESAFORM 2016, AIP Conference Proceedings, Nantes, France. http://dx.doi.org/10.1063/1.4963542

Schwane, M., Haase, M., Tekkaya, A. E., Misiolek, W., 2016. Influence of Extrusion Die Geometry on Weld Seam Properties of AA6082 Extrudates. In: 11th International Aluminum Extrusion Technology Seminar and Exposition, Chicago, USA, pp. 781-788.

Uhlmann, E., Tekkaya, A. E., Kashevko, V., Gies, S., Reimann, R., John, P., 2016. Qualification of CuCr1Zr for the SLM Process. In: ICHSF 2016, Dortmund, Germany, pp. 173-182.

2015

   

Becker, C., Tekkaya, A. E.,2015. Wall thickness distribution during a combined tube spinning and bending process. In: Key Engineering Materials 651 - 653, 18th International ESAFORM Conference on Material Forming 2015, Graz, Austria, pp. 1614-1619.

Chatti, S., Weinrich, A., El Budamusi, M., Becker, C., Maevus, F., Tekkaya, A. E., 2015. Influencing the Forming Limits in Air Bending Using Incremental Stress Superposition. In: Key Engineering Materials 651-653, 18th International ESAFORM Conference on Material Forming 2015, Graz, Austria, pp. 1602-1607.

Chen, H., Hess, S., Güner, A., Tekkaya, A. E., 2015. Active and passive granular media-based tube press hardening. In: 10. Erlanger Workshop Warmblechumformung, Meisenbach, Germany, pp. 115-129.

Citrea, T., Dahnke, C., Gagliardi, F., Haase, M., Ambrogio, G., Tekkaya, A. E., 2015. Optimization of Porthole Die for Non-symmetric Composite Profiles. In: Materials Today: Proceedings 2, Aluminium 2000 and International Conference on Extrusion and Benchmark (ICEB), Florence, Italy, pp. 4778-4785.

Dahnke, C., Foydl, A., Levin, E., Haase, M., Tekkaya, A. E., 2015. Process window for the embedding of eccentric steel-reinforcing elements in the discontinuous composite extrusion process. In: Advanced Materials Research, WGP Kongress 2015, Hamburg, Germany.

Dahnke, C., Hilbring, J., Kloppenborg, T., Haase, M., Tekkaya, A. E., 2015. Investigations for the Embedding of Functional Elements in the Composite Extrusion Process. In: Materials Today: Proceedings 2, Aluminium 2000 and International Conference on Extrusion and Benchmark (ICEB), Florence, Italy, pp. 4763-4770.

Dahnke, C., Selvaggio, A., Haase, M., Tekkaya, A. E., 2015. Developments in Composite Extrusion. JSTP International Seminar on Precision Forging (7th ISPF), Nagoya, Japan, pp. 119-122.

El Budamusi, M., Isik, K., Chen, L., Clausmeyer, T., Becker, C., Tekkaya, A. E., 2015. Enhanced Damage Modelling for Sheet Metal Forming of High Strength Steels – Part 2: Application to forming processes. 2nd European Steel Technology and Application Days, Düsseldorf, Germany, (CD).

Gamberoni, A., Donati, L., Reggiani, B., Haase, M., Tomesani, L., Tekkaya, A. E., 2015. Process Monitoring and Analysis of Hollow EN AW-6063 Extruded Profile. In: Materials Today: Proceedings 2, Aluminium 2000 and International Conference on Extrusion and Benchmark (ICEB), Florence, Italy, pp. 4714-4722.

Gutknecht, F., Steinbach, F., Clausmeyer, T., Tekkaya, A. E., 2015. Advanced material model for shear cutting of metal sheets. In: Proceedings of COMPLAS XIII, Barcelona, Spain, pp. 170-181.

Grzancic, G., Becker, C., Ben Khalifa, N., Tekkaya, A. E., 2015. Basic Investigations In Incremental profile Forming. MSEC2015, Charlotte, North Carolina, US. doi:10.1115/MSEC2015-9406.

Hölker, R., Haase, M., Ben Khalifa, N., Tekkaya, A. E., 2015. Hot extrusion dies with conformal cooling channels produced by additive manufacturing. In: Materials Today: Proceedings 2, Aluminium 2000 and International Conference on Extrusion and Benchmark (ICEB), Florence, Italy, pp. 4838-4846.

Isik, K., Chen, L., El Budamusi, M., Clausmeyer, T., Becker, C., Tekkaya, A. E., 2015. Enhanced Damage Modelling for Sheet Metal Forming of High Strength Steels - Part 1: Material model, experimental characterization and identification. 2nd European Steel Technology and Application Days, Düsseldorf, Germany, (CD).

Isik, K., Doig, M., Richter, H., Clausmeyer, T., Tekkaya, A. E., 2015. Enhancement of Lemaitre Model to Predict Cracks at Low and Negative Triaxialities in Sheet Metal Forming. Key Engineering Materials Special Issue SheMet 2015 639, pp. 427-434.

Levin, E., Haase, M., Foydl, A., Tekkaya, A. E., 2015. Composite extrusion of aluminum with discontinuous eccentric reinforcements. In: Materials Today: Proceedings 2, Aluminium 2000 and International Conference on Extrusion and Benchmark (ICEB), Florence, Italy, pp. 4758-4762.

Lueg-Althoff, J., Gies, S., Weddeling, C., Tekkaya, A. E., 2015. Joining of aluminium tubes by magnetic pulse welding, In: Aluminium - Building the Future, Congress Proceedings, European Aluminium Congress, Session 4, 23.-24.11.2015, Düsseldorf, Germany, pp. 1-15.

May, D., Ortelt, T. R. , Tekkaya, A. E., 2015. Using Remote Laboratories for Transnational Online Learning Environments in Engineering Education. In: Proceedings of E-Learn: World Conference on E-Learning in Corporate, Government, Healthcare, and Higher Education 2015, Hawaii, USA, pp. 632-637.

May, D., Sadiki, A., Pleul, C., Tekkaya A. E., 2015. Teaching and learning globally connected; Using live online classes for preparing international engineering students for transnational collaboration and for studying in Germany. 12th International Conference on Remote Engineering and Virtual Instrumentation (REV), Bangkok, Thailand, pp. 114-122.

Mennecart, T., Güner, A., Tekkaya, A. E., 2015. Forming behaviour of laser welded Tailor Welded Blanks made out of multiphase high strength steels - Characterisation, Modelling, and Verification. 2nd European Steel Technology and Application Days, Düsseldorf, Germany, (CD).

Napierala, O., Haase, M., Tekkaya, A. E., 2015. Hollow Lateral Extrusion without Lateral Mandrel. JSTP International Seminar on Precision Forging (7th ISPF), Nagoya, Japan, pp. 151-154.

Ossenkemper, S., Haase, M., Tekkaya, A. E., 2015. Composite Cold Forging of Shafts. In: Proceedings of the 48th ICFG Plenary Meeting (ICFG2015) Daejeon, Republic of Korea, pp. 89-94.

Ossenkemper, S., Haase, M., Tekkaya, A. E., Nadolski, D., Schulz, A., Hoffmann, F., Zoch, H., 2015. Cold Forging and Heat Treatment Induced Distorsion. In: Proceedings of the 48th ICFG Plenary Meeting (ICFG2015) Daejeon, Republic of Korea, pp. 14-19.

Sadiki, A., Ortelt, T. R., Pleul, C., Becker, C., Chatti, S., Tekkaya, A. E., 2015. The Challenge of Specimen Handling in Remote Laboratories for Engineering Education. 12th International Conference on Remote Engineering and Virtual Instrumentation (REV), Bangkok, Thailand, pp. 187-192.

Schwane, M., Kloppenborg, T., Haase, M., Ben Khalifa, N., Tekkaya, A. E., 2015. Approaches for the Simulation of Composite Extrusion - Possibilities and Limits. In: Materials Today: Proceedings 2, Aluminium 2000 and International Conference on Extrusion and Benchmark (ICEB), Florence, Italy, pp. 4771-4777.

Selvaggio, A., Donati, L., Reggiani, B., Haase, M., Dahnke, C., Schwane, M., Tomesani, L., Tekkaya, A. E., 2015. Effect of Choking and Bearing Length on Metal Flow Balancing in Extrusion Dies. In: Materials Today: Proceedings 2, Aluminium 2000 and International Conference on Extrusion and Benchmark (ICEB), Florence, Italy, pp. 4704-4713.

Staupendahl, D., Becker, C., Tekkaya, A. E., 2015. The Impact of Torsion on the Bending Curve during 3D Bending of Thin- Walled Tubes – a Case Study on Forming Helices. Key Engineering Materials 651-653, pp. 1595-1601.

Tekkaya, A. E., Becker, C., Ortelt, T. R., Grzancic, G., 2015. Utilizing Stress Superposition in Metal Forming. JSTP International Seminar on Precision Forging (7th ISPF), Nagoya, Japan, pp. 1-6.

Tekkaya, A. E., Hahn, M., Hiegemann, L., Weddeling, C., Ben Khalifa, N., 2015. Umformen faserverstärkter thermoplastischer Kunststoff-Halbzeuge mit metallischen Deckblechen für den Leichtbau. 35. EFB-Kolloquium Blechverarbeitung 2015, Intermezzo der hybriden Werkstofflösungen - Hat Blech eine Zukunft?, Bad Boll, Germany, pp. 185-200.

Tekkaya, A. E., Kloppenborg, T., Hölker, R., Schwane, M., Güzel, A., Haase, M., 2015. New Developments in the Simulation of Extrusion Processes. In: Proceedings of the International Conference: New Developments in Forging Technology – NEMU 2015, Stuttgart, Germany, pp. 125-134.

Zeller, S., Beese, S., Gerstein, G., Isik, K., Löhnert, S., Nürnberger, F., Wriggers, P., Maier, H. J., Tekkaya A. E., 2015. Möglichkeiten der simulativen Vorhersage von Temperaturentwicklung und Bauteilversagen infolge plastischer Deformation bei DP600 Bauteilen. In: 18. Workshop Simulation in der Umformtechnik & 3. Industriekolloquium Blechmassivumformung 2015 - DFG Transregio 73, Dortmund, Germany, pp. 113-128.

2014

   

Cai, S., Weddeling, C., Tekkaya, A. E., 2014. Investigation of Tailored Pressure Distributions by Vaporizing Tailored Foils. In: Proceedings of the 6th International Conference on High Speed Forming - ICHSF 2014, 26-29 May, Daejeon, Korea.

Chen, H., Güner, A., Ben Khalifa, N., Tekkaya, A. E., 2014. Numerical and experimental investigation on granular media-based tube press hardening. In 9. Erlanger Workshop Warmblechumformung 2014, 18.11.2014, Erlangen, Germany.

Dahnke, C., Pietzka, D., Haase, M., Tekkaya, A. E., 2014. Extending the Flexibility in the Composite Extrusion Process. In: Procedia CIRP Vol. 18, International Conference of Lightweight Components - ManuLight 2014, Dortmund, Germany

Demir, O.K., Weddeling, C., Ben Khalifa, N., Tekkaya, A. E., 2014. Avoiding Bending in Case of Uniaxial Tension with Electromagnetic Forming. In: Proceedings of the 6th International Conference on High Speed Forming - ICHSF 2014, 26-29 May, Daejeon, Korea.

Doig, M., Isik, K., Soyarslan, C., Eßer, G., Tekkaya, A. E., 2014. Formability assessment of advanced high strength steel sheets using (an)isotropic Lemaitre’s damage model. In: 4th International Conference on Steels in Cars and Trucks, Braunschweig, Germany.

El Budamusi, M., Weinrich, A., Becker, C., Chatti, S., Tekkaya, A. E., 2014. Forming Limit Extension of High-Strength Steels in Bending Processes. In: Key Engineering Materials 611-612, Esaform 2014, Espoo, Finland.

Gagliardi, F., Schwane, M., Citrea, T., Haase, M., Ben Khalifa, N., Tekkaya, A. E., 2014. Bridge Design Influences on the Pressure Conditions in the Welding Chamber for Porthole Die Extrusion. In: Key Engineering Materials Vol. 622-623, Metal Forming 2014, 15 th International Conference, Palermo, Italy.

Georgiadis, G., Tekkaya A. E., Weigert, P., Weiher, J., Kurz, H., 2014. Investigations on the manufacturability of thin press hardened steel components. In: Procedia CIRP Vol. 18,  International Conference of Lightweight Components - ManuLight 2014, Dortmund, Germany.

Gies, S., Weddeling, C., Tekkaya, A. E., 2014. Experimental Investigations on the Optimum Driver Configuration for Electromagnetic Sheet Metal Forming. In: 6th International Conference on High Speed Forming, Daejeon, Korea.

Grzancic, G., Becker, C., Hermes, M., Tekkaya, A. E., 2014. Innovative Machine Design for Incremental Profile Forming. Metal Forming 2014, In: Key Engineering Materials Vol. 622-623, Metal Forming 2014, 15 th International Conference, Palermo, Italy.

Güner, A., Zillmann, B., Lampke, T., Tekkaya, A. E., 2014. Titel In-Situ Stress Analysis with X-Ray Diffraction for Yield Locus Characterization of Sheet Metals. In: AIP Conference Proceedings 1567, Numisheet 2014, Melbourne, Australia.

Haase, M., Tekkaya, A. E., 2014. Recycling of aluminum chips by hot extrusion with subsequent cold extrusion. In: 11th International Conference on Technology of Plasticity, ICTP, Nagoya, Japan.

Hiegemann, L:, Weddeling, C.; Ben Khalifa, N., Tekkaya, A. E., 2014. Analytical prediction of roughness after ball burnishing of thermally coated surfaces. In: 11th International Conference on Technology of Plasticity, ICTP, Nagoya, Japan.

Hölker, R., Haase, M., Ben Khalifa, N., Tekkaya, A. E., 2014. Increased Productivity in Hot Aluminum Extrusion by Using Extrusion Dies with Inner Cooling Channels Manufactured by Rapid Tooling. In: Key Engineering Materials 611-612, Esaform 2014, Espoo, Finland.

Isik, K., Doig, M., Tekkaya, A. E., 2014. Failure Prediction During Deep Drawing of AHSS Using (An)isotropic Damage Model. In: International Deep Drawing Research Group, IDDRG2014, Paris, France.

Jäger, A., Ossenkemper, S., Hänisch, S., Tekkaya, A. E., 2014. Tiefzieh-Verbundfließpressen als innovatives Verfahren zur Herstellung von Hybridbauteilen. In: 21. Umformtechnisches Kolloquium, Hannover, Germany.

Kloppenborg, T., Schwane, M., Ben Khalifa, N., Tekkaya, A. E.,2014. Modeling and analysis of the material flow in aluminum extrusion. In OMD-2014, International Science & Technology Congress, 14-17.04.2014, Moscow, Russia.

Koch, L., Kennemann, F., Jerg,C., Horn, U., Steinbach,  F., Tekkaya, A. E., Hermann, M., 2014. Steel Absorbers in Mass Production – Challenges, Opportunities and produced samples. In: EuroSun 2014,  Aix-les-Bains, France.

Lauwers, B., Klocke, F., Klink, A., Tekkaya, A. E., Neugebaur, R., Mcintosh, D., 2014. Hybrid Processes in manufacturing. In: International Conference on Tribology in Manufacturing Processes & Joining by Plastic Deformation (ICTMP) 22.-24.6. 2014, Darmstadt, Germany.

Lorenz, A., Lueg-Althoff, J., Göbel, G., Weddeling, C., Beyer, E., Tekkaya, A.E., 2014. Influence of Axial Workpiece Positioning during Magnetic Pulse Welding of Aluminum-Steel Joints. In: International Conference on High Speed Forming - ICHSF 2014, Daejeon, Korea.

Löbbe, C., Becker, C., Tekkaya, A. E., 2014. Warm Bending of Microalloyed High-Strength Steel by Local Induction Heating. In: Forming Technology Forum 2014, Enschede, Netherlands.

Lueg-Althoff, J., Lorenz, A., Gies, S., Weddeling, C., Goebel, G., Tekkaya, A. E. , Beyer, E., 2014. Magnetic Pulse Welding by Electromagnetic Compression: Determination of the Impact Velocity. In: International Conference on Tribology in Manufacturing Processes & Joining by Plastic Deformation (ICTMP) 22.-24.6. 2014, Darmstadt, Germany.

Mennecart, T., Güner, A., Ben Khalifa, N., Tekkaya, A. E., 2014. Effects of weld line in deep drawing of tailor welded blanks of high strength steels. In: Key Engineering Materials 611-612, Esaform 2014, Espoo, Finland.

Mennecart, T., Güner, A., Ben Khalifa, N., Tekkaya, A. E., 2014. Steuerung der Rückfederung durch Nutzung von Funktionselementen innerhalb eines Tiefziehwerkzeuges aus Kunststoff. In: Nebu 2014, Stuttgart, Germany.

Mennecart, T., Güner, A., Ben Khalifa, N., Tekkaya, A. E., 2014. Control of geometry deviation by stiffness variation in polymer deep drawing tools. In: Nebu 2014, Stuttgart, Germany.

Pietzka, D., Jäger, A., Ben Khalifa, N., Foydl, A., Tekkaya, A. E., 2014. Extrusion of Multi-Material Components. In: Proceedings of the ASME 2014 International Manufacturing Science and Engineering Conference MSEC2014 June 9-13, 2014, Detroit, Michigan, USA.

Schwane, M., Dahnke, C., Haase, M., Ben Khalifa, N, Tekkaya, A. E., 2014. Composite Hot Extrusion of Functional Elements. In: WGP Kongress 2014, 9.-10.9.2014 in Erlangen, Germany.

Schwane, M.,  Citrea, T., Dahnke, C., Haase, M., Ben Khalifaa, N., Tekkaya, A. E., 2014. Simulation of composite hot extrusion with high reinforcing Volumes. In: 11th International Conference on Technology of Plasticity, ICTP, Nagoya, Japan.

Schwane, M., Kloppenborg, T., Haase, M., Ben Khalifa, N., Tekkaya, A. E., 2014. Residual stresses in continuously reinforced composite profiles with symmetric cross sections, In: Procedia CIRP Vol. 18, International Conference of Lightweight Components - ManuLight 2014, Dortmund, Germany.

Selvaggio, A., Haase, M., Ben Khalifa, N., Tekkaya, A. E., 2014. Extrusion of profiles with variable wall thickness. In: Procedia CIRP Vol. 18, International Conference of Lightweight Components - ManuLight 2014, Dortmund, Germany.

Sieczkarek, P., Isik, K., Ben Khalifa, N., Martins, P. A. F., Tekkaya, A. E., 2014. Mechanics of sheet-bulk indentation. In: WGP Kongress 2014, 9.-10.9.2014 in Erlangen, Germany.

Sieczkarek, P., Weddeling, C., Ben Khalifa, N., Tekkaya, A. E., 2014. Herstellung von belastungsangepassten Funktionsbauteilen mittels inkrementeller Blechmassivumformung. In: 21. Umformtechnisches Kolloquium, Hannover, Germany.

Steinbach, F., Chen, L., Güner, A., Tekkaya, A. E., 2014. Experimental and numerical analysis of dry shearing of aluminum 6082. In: WGP Kongress 2014, 9.-10.9.2014 in Erlangen, Germany.

Steinbach, F., Güner, A., Tekkaya, A. E., 2014. Dry shearing of micro-alloyed steels. In: Key Engineering Materials Vol. 622-623, Metal Forming 2014, 15 th International Conference, Palermo, Italy.

Staupendahl, D., Löbbe, C., Becker, C., Tekkaya, A.E., 2014. Process Combinations for the Production of Load-Optimized Structural Components. In: Wieland, H.J., Brockmann, S., TEMA Technologie Marketing AG (Eds.), SCT 2014. 4th Intern. Conf. on Steels in Cars and Trucks, Future Trends in steel development, processing technologies and applications, Düsseldorf, Germany.

Tekkaya, A. E., Ben Khalifa, N., Grzancic, G., Hölker, R., 2014. Forming of lightweight metal components: Need for new Technologies. In: 11th International Conference on Technology of Plasticity, ICTP, Nagoya, Japan.

ul Hassan, H., Güner, A., Ben Khalifa, N., Tekkaya, A. E., 2014. Incremental Analysis of Springback and Kinematic Hardening by the Variation of Tension During Deep Drawing. In: AIP Conference Proceedings 1567, Numisheet 2014, Melbourne, Australia.

Vivek, A., Weddeling, C., Hahn, M., Daehn, G. S., Tekkaya, A. E., 2014. Eletrically driven plasma via vaporization of metallic conductors: A novel tool for joining tubular workpieces. In: Procedia CIRP Vol. 18, International Conference of Lightweight Components - ManuLight 2014, Dortmund, Germany.

Weddling, C., Gies, S., Tekkaya, A. E., Ben Khalifa, N., 2014. Analytical Methodology for the Process and Joint Design of Form-Fit by Die-Less Hydroforming. In: Proceedings of the ASME 2014 International Manufacturing Science and Engineering Conference MSEC2014 June 9-13, 2014, Detroit, Michigan, USA.

Weddeling, C., Hahn, M., Daehn, G. S., Tekkaya, A. E. 2014. Uniform Pressure Electromagnetic Actuator - An innovative tool for magnetic pulse welding. In: Procedia CIRP Vol. 18, International Conference of Lightweight Components - ManuLight 2014, Dortmund, Germany.

Weinrich, A., Becker, C., Maevus, F., Chatti, S., Tekkaya, A. E., 2014. Analysis of the Potential of Incremental Stress Superposition on Air Bending. In: Key Engineering Materials Vol. 622-623, Metal Forming 2014, 15 th International Conference, Palermo, Italy.

Weinrich, A., Becker, C., Maevus, F., Chatti, S., Tekkaya, A. E., 2014. Bending of Tailored Blanks Using Elastic Tools. In: WGP Kongress 2014, 9.-10.9.2014, Erlangen, Germany.

2013

   

Alharthi, N. H., De Pari, L. Jr., Güzel, A., Jäger, A., Misiolek, W. Z., Tekkaya, A. Erman, 2013. Modeling Surface Grain Structure Evolution in Aluminum Alloy 6082 Hot Direct Extrusion. In: Proceedings of the 12th International Aluminium Conference, INALCO, Montreal, Canada.

Becker, C., Isik, K., Bayraktar, A., Chatti, S., Hermes, M., Soyarslan, C., Tekkaya, A. E., 2013. Numerical Investigation of the Incremental Tube Forming Process. In: Key Engineering Materials 554-557, Esaform 2013, Aveiro, Portugal.

Behrens, B. A., Tekkaya, A. E., Kosch, K. G., Foydl, A., Kammler, M., Jäger, A., 2013. Manufacturing of steel-reinforced aluminum parts by co-extrusion and subsequent forging. In: Advances in Hot Metal Extrusion and Simulation of Light Alloys, Proceedings of ICEB 2013, Dortmund, Germany.

Ben Khalifa, N., Becker, C., Jäger, A., Kwiatkowski, L., Selvaggio, A., Tekkaya, A. E., 2013. Geometric gradation of profiles for lightweight applications. In: Proceedings of the 6th JSTP International Seminar on Precision Forging Kyoto, Japan.

Chen, H., Mennecart, T., Güner, A., Tekkaya, A. E., 2013. Numerical Modeling of Press Hardening of Tubes and Profiles Using Shapeless Solid as Forming Media. In: 4th International Conference on Hot Sheet Metal Forming of High-Performance Steel, 2013, Lulea, Sweden.

Doig, M., Isik, K., Soyarslan, C., Tekkaya, A. E., 2013. Versagensvorhersage bei der Blechumformsimulation höchstfester Stähle. In: 20. Sächsische Fachtagung Umformtechnik SFU2013, Dresden, Germany.

Faßmann, D., Isik, K., Zeller, S., Beese, S., Ben Khalifa, N., Nürnberger, F., Schaper, M., Tekkaya, A. E., Löhnert, S., Wriggers, P., 2013. Abbildung des Werkstoffverhaltens von ferritischem Stahl in numerischen Modellen zur Darstellung von Blechmassivumformprozessen bei zyklischen Belastungspfaden. In: 2. Workshop Blechmassivumformung, Erlangen, Germany.

Foydl, A., Kosch, K.-G., Jäger, A., Pfeiffer, I., Tekkaya, A. E., Behrens, B.-A., 2013. Co-extrusion of discontinuosly steel-reinforced aluminium. In: Proceedings of the 6th JSTP International Seminar on Precision Forging, Kyoto, Japan.

Georgiadis, G., Weigert, P., Kurz, H., Alsmann, M., Engelhardt, P., Tekkaya, A. E., Scholtes, B., 2013. Untersuchung der Herstellbarkeit dünner Warmumformbauteile, In: 8. Erlanger Workshop Warmblechumformung, Erlangen, Germany.

Gies, S, Weddeling, C., Kwiatkowski, L., Tekkaya, A. E., 2013. Groove filling characteristics and strength of form-fit joints produced by die-less hydroforming. In: Key Engineering Materials 554-557, Esaform 2013, Aveiro, Portugal.

Haase, M., Jäger, A., Tekkaya, A. E., 2013. Recycling of aluminum chips by hot extrusion. In: Proceedings of the 4th Machining Innovations Conference, Hannover, Germany.

Hänisch, S., Ossenkemper, S., Jäger, A., Tekkaya, A. E., 2013. Forging Technology 2013. In: International Conference on „New Developments in Forging Technology”, Fellbach, Germany.

Hölker, R., Jäger, A., Ben Khalifa, N., Tekkaya, A. E., 2013. Cooling of extrusion dies manufactured by rapid tooling technologies. In: Proceedings of the 6th JSTP International Seminar on Precision Forging, Kyoto, Japan.

Jäger, A., Selvaggio, A., Hänisch, S., Haase, M., Becker, C., Kolbe, J., Ben Khalifa, N., Tekkaya, A. E., 2013. Innovative Hybrid Process in Metal Forming. In: Proceedings of NAMRI/SME 41, Madison, USA.

Kiliclar, Y., Demir, O. K., Vladimirov, I. N., Kwiatkowski, L., Reese, S., Tekkaya, A. E.,2013. Simulation of electromagnetic forming of a cross-shaped cup by means of a viscoplasticity model coupled with damage at finite strains.In: Key Engineering Materials 554-557, Esaform 2013, Aveiro, Portugal.

Kloppenborg, T., Schwane, M., Ben Khalifa, N., Jäger, A., Tekkaya, A. E., 2013. Simulation Based Development and Analysis of Extrusion Processes. In: Proceedings of the European Aluminium Congress 2013, Düsseldorf, Germany.

May, D., Terkowsky, C., Haertel, T., Pleul, C., 2013. The laboratory in your hand – Making remote laboratories accesible through mobile devices. In: Proceedings of IEEE Global Engineering Education Conference 2013, Berlin, Germany.

Mennecart, T., ul Hassan, H., Fruth, J., Wagner, T., Güner, A., Ben Khalifa, N., Tekkaya, A. E.,2013. Reduction of springback by use of deep drawing tools with locally and temporally varying stiffness. In: Tools and Technologies for Processing Ultra High Strength Materials, TTP2013, Graz, Austria.

Ossenkemper, S., Haase, M., Soyarslan, C., Jäger, A., Tekkaya, A. E., 2013. Tool design induced anisotropic flow behavior of hot extruded aluminum profiles. In: Advances in Hot Metal Extrusion and Simulation of Light Alloys, Proceedings of ICEB 2013, Dortmund, Germany.

Pietzka, D., Ben Khalifa, N., Gerke, S., Tekkaya, A. E., 2013. Composite extrusion of thin aluminum profiles with high reinforcing volume. In: Key Engineering Materials 554-557, Esaform 2013, Aveiro, Portugal.

Pleul, C., Hermes, M., Chatti, S., Tekkaya, A. E., 2013. miniLABs – Drop in and become fascinated by engineering experiments. In: Proceedings of IEEE Global Engineering Education Conference 2013, Berlin, Germany.

Schuster, A., Raedt, H-W., Tekkaya, A. E., 2013. Influence of Cold Upsetting on the Shape of the Microstructure and Inclusions in Different Kind of Steels and on the Notch Impact Energy. In: Proceedings International Cold Forging Group, 46th ICFG Plenary Meeting, Paris, France.

Schwane, M., Kloppenborg, T., Ben Khalifa, N., Jäger, A., Tekkaya, A. E., 2013. Finite element based determination and optimization of seam weld positions in porthole die extrusion of double hollow profile with asymmetric cross section. In: Advances in Hot Metal Extrusion and Simulation of Light Alloys, Proceedings of ICEB 2013, Dortmund, Germany.

Schwane, M., Gagliardi, F., Jäger, A., Ben Khalifa, N., Tekkaya, A. E., 2013. Modeling approach for the determination of material flow and welding conditions in porthole die extrusion with gas pocket formation. In: Key Engineering Materials 554-557, Esaform 2013, Aveiro, Portugal.

Selvaggio, A., Ben Khalifa, N., Tekkaya, A. E., 2013. Strangpressen von Profilen mit variabler Wandstärke. In: Forging Technology 2013, International Conference on „New Developments in Forging Technology”, Fellbach, Germany.

Selvaggio, A., Kloppenborg, T., Schwane, M., Hölker, R., Jäger, A., Donati, T. L., Tekkaya, A. E., 2013. Extrusion Benchmark 2013 – Experimental analysis of mandrel deflection, local temperature and pressure in extrusion dies. In: Advances in Hot Metal Extrusion and Simulation of Light Alloys, Proceedings of ICEB 2013, Dortmund, Germany.

Sieczkarek, P., Kwiatkowski, L., Tekkaya, A. E., Krebs, E., Kersting, P., Tillmann, W., Herper, J., 2013. Innovative tools to improve incremental bulk forming processes. In: Key Engineering Materials 554-557, Esaform 2013, Aveiro, Portugal.

Sieczkarek, P., Kwiatkowski, L., Ben Khalifa, N., Tekkaya, A. E., 2013. Novel five-axis forming press for the incremental sheet-bulk metal forming. In: Key Engineering Materials 554-557, Esaform 2013, Aveiro, Portugal.

ul Hassan, H., Fruth, J., Güner, A.,Mennecart, T., Tekkaya, A. E., 2013. Finite element simulations for sheet metal forming process with functional input for the minimization of springback. In: Proceedings of the IDDRG 2013 Conference, Zurich, Switzerland.

Yin, Q., Kolbe, J., Haupt, M., Tekkaya, A. E., 2013. Achieving high strains in sheet metal characterization using the in-plane torsion test. In: Key Engineering Materials 554-557, Esaform 2013, Aveiro, Portugal.

Yue, Z. M., Soyarslan, C., Badreddine, H., Saanouni, K., Tekkaya, A. E., 2013. Inverse identification of CDM model parameters for DP1000 steel sheets using a hybrid experimental-numerical methodology spanning various stress triaxility ratios. In: Key Engineering Materials 554-557, Esaform 2013, Aveiro, Portugal.

2012

   

Becker, C., Staupendahl, D., Hermes, M., Chatti, S., Tekkaya, A. E., 2012. Incremental tube forming and torque superposed spatial bending – A view on process parameters. In: Mori, K., Pietrzyk, M., Kusiak, J., Majta, J., Hartley, P., Lin, J. (Eds.), Steel Research International, Special Edition: 14th International Conference Metal Forming, Wiley, Weinheim, Germany, pp. 415-418.

Brosius, A., Weddeling, C., Hahn, M., Tekkaya, A. E., 2012. Elektromagnetisches Schweißen von Aluminiumblechen. In: Neugebauer, R., Drossel, W-G. (Eds.), 4th International Conference on Accuracy in Forming Technology, ICAFT 2012, Verlag Wissenschaftliche Scripten, Auerbach, Germany, pp. 227-237.

Chatti, S., Pietzka, D., Ben Khalifa, N., Jäger, A., Selvaggio, A., Tekkaya, A. E., 2012. Lightweight construction by means of profiles. In: Merklein, M., Hagenah, H. (Eds.), Key Engineering Materials 504-506, Special Edition: Material Forming ESAFORM 2012, Trans Tech Publications, Zurich-Durnten, Switzerland, pp. 369-374.

Demir, O. K., Kwiatkowski, L., Brosius, A., Tekkaya, A. E., 2012. Exceeding the forming limit curve with deep drawing followed by electromagnetic calibration. In: Tekkaya, A. E., Daehn, G. S., Kleiner, M. (Eds.), High Speed Forming 2012, Proceedings of the International Conference, Dortmund, Germany, pp.277-282.

Donati, L., Ben Khalifa, N., Tomesani, L., Tekkaya, A. E., 2012. A review of FEM code accuracy for reliable extrusion process analysis: Extrusion benchmarks 2009 and 2011. In: Proceedings of the Tenth International Aluminium Extrusion Technology Seminar ET´12, Miami, Florida (USA), pp. 481-491.

Donati, L., Ben Khalifa, N., Tomesani, L., Tekkaya, A. E., 2012. Effect of porthole design and welding chamber dimensions on material flow and weld deformability of extruded aluminium profiles. In: Merklein, M., Hagenah, H. (Eds.), Key Engineering Materials 504-506, Special Edition: Material Forming ESAFORM 2012, Trans Tech Publications, Zurich-Durnten, Switzerland, pp. 523-528.

Foydl, A., Pfeiffer, I., Kammler, M., Pietzka, D., Jäger, A., Tekkaya, A. E., Behrens, B.-A., 2012. Manufacturing of steel-reinforced aluminum products by combining hot extrusion and closed-die forging. In: Merklein, M., Hagenah, H. (Eds.), Key Engineering Materials 504-506, Special Edition: Material Forming ESAFORM 2012, Trans Tech Publications, Zurich-Durnten, Switzerland, pp. 481-486.

Foydl, A., Turan, E., Jäger, A., Tekkaya, A. E., 2012. Influence of steel reinforcement geometry on position and embedding quality in discontinuously-reinforced, co-extruded aluminum profiles. In: Proceedings of the Tenth International Aluminium Extrusion Technology Seminar ET´12, Miami, Florida (USA), pp. 665-674.

Gies, S., Weddeling, C., Marré, M., Kwiatkowski, L., Tekkaya, A. E., 2012. Analytic prediction of the process parameters for form-fit joining by die-less hydroforming. In: Merklein, M., Hagenah, H. (Eds.), Key Engineering Materials 504-506, Special Edition: Material Forming ESAFORM 2012, Trans Tech Publications, Zurich-Durnten, Switzerland, pp. 393-398.

Güley, V., Haase, M., Jäger, A., Tekkaya A. E., 2012. Hot extrusion of aluminum chips. In: Weiland, H., Rollet, A. D., Cassada, W. A. (Eds.), Proceedings of the 13th International Conference on Aluminium Alloys ICAA-13, John Wiley and Sons, Hoboken, New Jersey (USA), pp. 1559-1573.

Güley, V., Jäger, A., Tekkaya, A. E., 2012. The effect of die design on the mechanical properties of profiles recycled from AA6060 chips by hot extrusion. In: Proceedings of the Tenth International Aluminium Extrusion Technology Seminar ET´12, Miami, Florida (USA),pp. 391-398.

Güzel, A., Holzweissig, M. J., Jäger, A., Tekkaya, A. E., Maier, H. J., 2012. Prediction of dynamic grain structure evolution during hot extrusion of EN AW–6082. In: Heim, H.-P., Biermann, D., Maier, H. J., (Eds.), 1st International Conference on Thermo-Mechanically Graded Materials, Verlag Wissenschaftliche Scripten, Auerbach, Germany, pp.137-142.

Güzel, A., Jäger, A., Ben Khalifa, N., Tekkaya, A. E., 2012. Investigation of the dynamic grain structure evolution during hot extrusion of EN AW–6082. In: Proceedings of the Tenth International Aluminium Extrusion Technology Seminar ET´12, Miami, Florida (USA), pp. 603-609.

Haase, M., Jäger, A., Tekkaya, A. E., 2012. Influence of extrusion ratio on AA6060 aluminum alloy chips solid state recycled by integrated extrusion and equal channel angular pressing. In: Mori, K., Pietrzyk, M., Kusiak, J., Majta, J., Hartley, P., Lin, J. (Eds.), Steel Research International, Special Edition: 14th International Conference Metal Forming, Wiley, Weinheim, Germany, pp. 479-482.

Hänisch, S., Ossenkemper, S., Jäger, A., Ben Khalifa, N., Tekkaya, A. E., Nadolski, D., Schulz, A., Hoffmann, F., Zoch, H.-W., 2012. Distortion in cold forging and cold drawing. In: Ishikawa, T., Yoshida, Y., Hayakawa, K., Wang, Z. G. (Eds.), Proceedings of the 45th ICFG Plenary Meeting, Nagoya, Japan, pp. 32-38.

ul Hassan, H., Ivanov, M., Fruth, J., Kuhnt, S., Kolbe, J., Tekkaya, A. E., 2012. Planung und Analyse von FE-Simulationen von Blechumformprozessen mit funktionalem Input. In: Tillmann, W., Nebel, J. (Eds.), Sonderforschungsbereich 708, 5. öffentliches Kolloquium, Verlag Praxiswissen, Dortmund, Germany, pp.173-183.

Hermes, M., Staupendahl, D., Becker, C., Weinrich, A., Tekkaya, A. E., Kleiner, M., 2012. Bending of tubes, profiles and sheet metals for lightweight structures. In: Gronstojanski, Z. (Ed.), Advanced Metal Forming Processes in Automotive Industry – The 3rd International Lower Silesia-Saxony Conference AutoMetForm, Wroclaw, Poland, pp. 251-263.

Hölker, R., Jäger, A., Ben Khalifa, N., Tekkaya, A. E., 2012. New concepts for cooling of extrusion dies manufactured by rapid tooling. In: Tomesani, L., Donati, L. (Eds.), Progress in Extrusion Technology and Simulation of Light Metal Alloys, Selected, peer reviewed papers from the ICEB 2011, Key Engineering Materials 491, Trans Tech Publications, Zurich-Durnten, Switzerland, pp. 223-232.

Hölker, R., Jäger, A., Tekkaya, A. E., 2012. Rapid laminated hot extrusion dies with integrated cooling channels. In: Mori, K., Pietrzyk, M., Kusiak, J., Majta, J., Hartley, P., Lin, J. (Eds.), Steel Research International, Special Edition: 14th International Conference Metal Forming, Wiley, Weinheim, Germany, pp. 503-506.

Jäger, A., Tekkaya, A. E., 2012. Analysis of the radial workpiece displacement in electromagnetic forming applied subsequent to hot aluminum extrusion. In: Mori, K., Pietrzyk, M., Kusiak, J., Majta, J., Hartley, P., Lin, J. (Eds.), Steel Research International, Special Edition: 14th International Conference Metal Forming, Wiley, Weinheim, Germany, pp. 527-530.

Jäger, A., Tekkaya, A. E., 2012. Online measurement of the radial workpiece displacement in electromagnetic forming subsequent hot aluminium extrusion. In: Tekkaya, A. E., Daehn, G. S., Kleiner, M. (Eds.), High Speed Forming 2012, Proceedings of the International Conference, Dortmund, Germany, pp. 13-22.

Kiliclar, Y., Demir, O. K., Vladimirov, I. N., Kwiatkowski, L., Brosius, A., Reese, S., Tekkaya, A. E., 2012. Combined simulation of quasi-static deep drawing and electromagnetic forming by means of a coupled damageviscoplasticity model at finite strains. In: Tekkaya, A. E., Daehn, G. S., Kleiner, M. (Eds.), High Speed Forming 2012, Proceedings of the International Conference, Dortmund, Germany, pp. 325-334.

Kloppenborg, T., Brosius, A., Tekkaya, A. E., 2012. Optimierung des Verbundstrangpressens. In: 15. Workshop Simulation in der Umformtechnik, Optimierung von Prozessen in der Blech- und Massivumformung, Stuttgart, Germany, pp. 8-18.

Kloppenborg, T., Schwane, M., Ben Khalifa, N., Tekkaya, A. E., Brosius, A., 2012. Experimental and numerical analysis of material flow in porthole die extrusion. In: Tomesani, L., Donati, L. (Eds.), Progress in Extrusion Technology and Simulation of Light Metal Alloys, Selected, peer reviewed papers from the ICEB 2011, Key Engineering Materials 491, Trans Tech Publications, Zurich-Durnten, Switzerland, pp. 97-104.

Kolbe, J., Tekkaya, A. E., 2012. Entwicklung und Untersuchung steifigkeitsangepasster hybrider Tiefziehwerkzeuge auf Polymerbasis. In: Tillmann, W., Nebel, J. (Eds.), Sonderforschungsbereich 708, 5. öffentliches Kolloquium, Verlag Praxiswissen, Dortmund, Germany, pp. 147-157.

Kwiatkowski, L., Demir, O. K., Gies, S., Tekkaya, A. E.,2012. Recent developments in non-conventional tube forming. In: Proceedings of the North American Manufacturing Research Institution of the Society of Manufacturing Engineers, NAMRC, Vol. 40, Notre Dame, Indiana (USA).

Mennecart, T., Brosius, A., Kolbe, J., Tekkaya, A. E., 2012. Prediction of the forming behaviour of tailor welded blanks using a modified mixture rule. In: Tewari, A., Narasimhan, K., Date, P. P. (Eds.), Lightweighting: Possibilities and Challenges, Part I, International Deep Drawing Research Group Conference, Mumbai, India, pp. 361-366.

Pfeiffer, I., Foydl, A., Kammler, M., Matthias, T., Kosch, K.-G., Jäger, A., Ben Khalifa, N., Tekkaya, A. E., Behrens, B.-A., 2012. Compound forging of hot-extruded steel-reinforced aluminum parts. In: Mori, K., Pietrzyk, M., Kusiak, J., Majta, J., Hartley, P., Lin, J. (Eds.), Steel Research International, Special Edition: 14th International Conference Metal Forming, Wiley, Weinheim, Germany, pp. 159-162.

Pietzka, D., Lueg-Althoff, J., Tekkaya, A. E., 2012. Innovative Umformverfahren für den Fahrzeugleichtbau, 2. VDI-Leichtbaukongress: Leichtbaustrategien für den Automobilbau, Stuttgart, Germany.

Psyk, V., Gerstein, G., Barlage, B., Albuja, B., Gies, S., Tekkaya, A. E., Bach, F.-W., 2012. Process model and design for magnetic pulse welding by tube expansion. In: Tekkaya, A. E., Daehn, G. S., Kleiner, M. (Eds.), High Speed Forming 2012, Proceedings of the International Conference, Dortmund, Germany, pp. 197-206.

Schwane, M., Kloppenborg, T., Reeb, A., Ben Khalifa, N., Brosius, A., Weidenmann, K. A., Tekkaya, A. E., 2012. Numerical approach for the evaluation of seam welding criteria in extrusion processes. In: Merklein, M., Hagenah, H. (Eds.), Key Engineering Materials 504-506, Special Edition: Material Forming ESAFORM 2012, Trans Tech Publications, Zurich-Durnten, Switzerland, pp. 517-522.

Sebastiani, G., Wawrosch, A., Franzen, V., Brosius, A., Tekkaya, A. E., 2012. FlexDie: A flexible tooling-concept for incremental sheet forming. In: Merklein, M., Hagenah, H. (Eds.), Key Engineering Materials 504-506, Special Edition: Material Forming ESAFORM 2012, Trans Tech Publications, Zurich-Durnten, Switzerland, pp. 883-888.

Selvaggio, A., Ben Khalifa, N., Chatti, S., Tekkaya, A. E., 2012. Manufacture of profiles with variable cross-sections, curvatures and twistings by influencing the material flow in hot extrusion. In: Mori, K., Pietrzyk, M., Kusiak, J., Majta, J., Hartley, P., Lin, J. (Eds.), Steel Research International, Special Edition: 14th International Conference Metal Forming, Wiley, Weinheim, Germany, pp. 507-510.

Selvaggio, A., Chatti, S., Ben Khalifa, N., Tekkaya, A. E., 2012. New developments in extrusion of profiles with variable curvatures and cross-sections. In: Proceedings of the Tenth International Aluminium Extrusion Technology Seminar ET´12, Miami, Florida (USA), pp. 505-512.

Selvaggio, A., Segatori, A., Güzel, A., Donati, L., Tomesani, L., Tekkaya, A. E., 2012. Extrusion Benchmark 2011: Evaluation of different design strategies on process conditions, die deflection and seam weld quality in hollow profiles. In: Tomesani, L., Donati, L. (Eds.), Progress in Extrusion Technology and Simulation of Light Metal Alloys, Selected, peer reviewed papers from the ICEB 2011, Key Engineering Materials 491, Trans Tech Publications, Zurich-Durnten, Switzerland, pp. 1-10.

Sieczkarek, P., Kwiatkowski, L., Tekkaya, A. E., Krebs, E., Biermann, D., Tillmann, W., Herper, J., 2012. Improved tool surfaces for incremental bulk forming processes of sheet metals. In: Merklein, M., Hagenah, H. (Eds.), Key Engineering Materials 504-506, Special Edition: Material Forming ESAFORM 2012, Trans Tech Publications, Zurich-Durnten, Switzerland, pp. 975-980.

Steinbach, F., Koch, L., Hermann, M., Witulski, J., Tekkaya, A. E., 2012. Processing of new solar absorbers in steel design based on partially cold roll bonded hybrid semi-finished parts. In: Merklein, M., Hagenah, H. (Eds.), Key Engineering Materials 504-506, Special Edition: Material Forming ESAFORM 2012, Trans Tech Publications, Zurich-Durnten, Switzerland, pp. 137-142.

Tekkaya, A. E., 2012. Recent developments in bulk metal forming. In: Ishikawa, T., Yoshida, Y., Hayakawa, K., Wang, Z. G. (Eds.), Proceedings of the 45th ICFG Plenary Meeting, Nagoya, Japan, pp. 48-57.

Tekkaya, A. E., Franzen, V., Hiegemann, L., 2012. Inkrementelle Walzbearbeitung thermisch gespritzter Werkzeugwirkflächen und deren Einsatzverhalten in der Blechumformung. In: Tillmann, W., Nebel, J. (Eds.), Sonderforschungsbereich 708, 5. öffentliches Kolloquium, Verlag Praxiswissen, Dortmund, Germany, pp. 33-41.

Tekkaya, A. E., Güley, V., Haase, M., Jäger, A., 2012. Hot extrusion of aluminium chips. In: Weiland, H., Rollet, A. D., Cassada, W. A. (Eds.), Proceedings of the 13th International Conference on Aluminium Alloys ICAA-13, John Wiley and Sons, Hoboken, New Jersey (USA), pp. 1559-1574.

Weddeling, C., Gies, S., Nellesen, J., Kwiatkowski, L., Tillmann, W., Tekkaya, A. E., 2012. Influencing factors on the strength of electromagnetically produced form-fit joints using knurled surfaces. In: Tekkaya, A. E., Daehn, G. S., Kleiner, M. (Eds.), High Speed Forming 2012, Proceedings of the International Conference, Dortmund, Germany, pp. 243-254.

Weinrich, A., Hermes, M., Chatti, S., Tekkaya, A. E., 2012. Experimental and numerical investigations on incremental stress superposition in air bending. In: Mori, K., Pietrzyk, M., Kusiak, J., Majta, J., Hartley, P., Lin, J. (Eds.), Steel Research International, Special Edition: 14th International Conference Metal Forming, Wiley, Weinheim, Germany pp. 423-426.

Yin, Q., Brosius, A., Tekkaya, A. E., 2012. Möglichkeiten des ebenen Torsionsversuchs für die Charakterisierung des Verfestigungsverhaltens von Blechwerkstoffen. In: Borsutzki, M., Moninger, G. (Eds.), Fortschritte in der Werkstoffprüfung für Forschung und Praxis, Tagung für Werkstoffprüfung 2012, Verlag Stahleisen, Düsseldorf, Germany, pp 51-56.